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LibJS/JIT: Compile the HasPrivateId instruction

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This commit is contained in:
Simon Wanner 2023-10-30 00:28:13 +01:00 • committed by Andreas Kling
parent 712c89dacf
commit a16082c6a5
3 changed files with 26 additions and 1 deletions
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2
Userland/Libraries/LibJS/Bytecode/Op.h
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@ -645,6 +645,8 @@ public:
ThrowCompletionOr<void> execute_impl(Bytecode::Interpreter&) const;
DeprecatedString to_deprecated_string_impl(Bytecode::Executable const&) const;
IdentifierTableIndex property() const { return m_property; }
private:
IdentifierTableIndex m_property;
};

22
Userland/Libraries/LibJS/JIT/Compiler.cpp
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@ -1596,6 +1596,28 @@ void Compiler::compile_get_new_target(Bytecode::Op::GetNewTarget const&)
store_vm_register(Bytecode::Register::accumulator(), RET);
}
static Value cxx_has_private_id(VM& vm, Value object, DeprecatedFlyString const& identifier)
{
if (!object.is_object())
TRY_OR_SET_EXCEPTION(vm.throw_completion<TypeError>(ErrorType::InOperatorWithObject));
auto private_environment = vm.running_execution_context().private_environment;
VERIFY(private_environment);
auto private_name = private_environment->resolve_private_identifier(identifier);
return Value(object.as_object().private_element_find(private_name) != nullptr);
}
void Compiler::compile_has_private_id(Bytecode::Op::HasPrivateId const& op)
{
load_vm_register(ARG1, Bytecode::Register::accumulator());
m_assembler.mov(
Assembler::Operand::Register(ARG2),
Assembler::Operand::Imm(bit_cast<u64>(&m_bytecode_executable.get_identifier(op.property()))));
native_call((void*)cxx_has_private_id);
store_vm_register(Bytecode::Register::accumulator(), RET);
check_exception();
}
void Compiler::jump_to_exit()
{
m_assembler.jump(m_exit_label);

3
Userland/Libraries/LibJS/JIT/Compiler.h
View file

@ -131,7 +131,8 @@ private:
O(GetImportMeta, get_import_meta) \
O(DeleteVariable, delete_variable) \
O(GetMethod, get_method) \
O(GetNewTarget, get_new_target)
O(GetNewTarget, get_new_target) \
O(HasPrivateId, has_private_id)
# define DECLARE_COMPILE_OP(OpTitleCase, op_snake_case) \
void compile_##op_snake_case(Bytecode::Op::OpTitleCase const&);